Build multimodal agentic systems that use large language models for creative video analysis and editing. The role spans model training, structured generation, evaluation, failure analysis, and deployment of production ML pipelines.
175k – 275k/yr
On-siteML Engineering
About the role
Responsibilities
Design and build end-to-end agentic systems for creative tasks.
Develop novel approaches for training and adapting the large language models that power these agents.
Design objectives, datasets, and fine-tuning strategies to improve agent behavior and reliability.
Explore multimodal reasoning and structured generation for creative control.
Run systematic experiments to evaluate and improve agent performance in real-world tasks.
Design evaluation frameworks for agentic workflows in video analysis and editing.
Analyze failure modes across the full agent loop—including planning, tool use, and execution—and iterate on improvements.
Requirements
BS, MS, or PhD in Computer Science, Machine Learning, or a related field.
Strong track record building production ML systems or agentic pipelines.
Deep understanding of transformers and modern LLM techniques.
Experience with fine-tuning, alignment, or post-training methods, especially for adapting models to generate structured outputs or drive tool use.
Comfort owning the full stack, from model-level experiments to deployed agent systems.
Strong experimental rigor and good judgment about what makes agents work effectively in practice.
Build and own a mission-critical research platform for evaluating AI model capabilities and behaviors at xAI. Design instruments, datasets, grading schemes, and infrastructure to measure, diagnose, and improve models while shipping delightful internal tools.
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